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Landmark Trials

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https://www.readbyqxmd.com/read/29239748/validation-of-an-alignment-method-using-motion-tracking-system-for-in-vitro-orientation-of-cadaveric-hip-joints-with-reduced-set-of-anatomical-landmarks
#1
Suzan Bsat, Ifaz Haider, Andrew Speirs, Paul Beaulé, Hanspeter Frei
Accurate in-vitro orientation of cadaveric hip joints is challenging due to limited available anatomical landmarks. Published hip joint in-vitro investigations commonly lack details on methods used to achieve reported orientations and the accuracy with which the desired orientation has been achieved. The aim of this study was to develop an accurate method for orienting hip joints with limited anatomical landmarks for in-vitro investigations, and to compare this method against orientation using guiding axes and by visual approximation...
November 25, 2017: Medical Engineering & Physics
https://www.readbyqxmd.com/read/29239515/rationale-and-design-of-transition-a-randomized-trial-of-pre-discharge-vs-post-discharge-initiation-of-sacubitril-valsartan
#2
Domingo Pascual-Figal, Rolf Wachter, Michele Senni, Jan Belohlavek, Adele Noè, David Carr, Dmytro Butylin
AIMS: The prognosis after hospitalization for acute decompensated heart failure (ADHF) remains poor, especially <30 days post-discharge. Evidence-based medications with prognostic impact administered at discharge improve survival and hospital readmission, but robust studies comparing pre-discharge with post-discharge initiation are rare. The PARADIGM-HF trial established sacubitril/valsartan as a new evidence-based therapy in patients with heart failure (HF) and reduced left ventricular ejection fraction (<40%) (rEF)...
December 14, 2017: ESC Heart Failure
https://www.readbyqxmd.com/read/29232249/clinical-trials-in-valvular-surgery-a-2018-update
#3
Bobby Yanagawa, Amine Mazine, Derrick Y Tam, Subodh Verma
PURPOSE OF REVIEW: There is a growing emphasis on the conduct of large-scale, multicenter randomized controlled trials (RCTs) to guide decision-making in cardiac surgery. Here we review recent landmark RCTs in cardiac valvular surgery. RECENT FINDINGS: RCTs are the gold-standard level of data in medicine. However, there are unique challenges of conducting large-scale surgical trials including funding, blinding, generalizability, nonstandardization of the surgical technique, crossover, among others...
December 11, 2017: Current Opinion in Cardiology
https://www.readbyqxmd.com/read/29230123/molecular-targets-in-non-small-cell-lung-cancer
#4
REVIEW
Ryan Griffin, Robert A Ramirez
Background: Lung cancer is the second most common cancer in the United States among men and women, and it is the most common cause of cancer-related death. Non-small cell lung cancer (NSCLC) represents approximately 85% of all lung cancer cases. Historically, patients with metastatic NSCLC received similar cytotoxic chemotherapy regimens. Genotyping studies have revealed genetic/molecular abnormalities in lung cancer. These driver mutations render a cancer dependent on that specific mutation's biochemical pathway for its growth and survival...
2017: Ochsner Journal
https://www.readbyqxmd.com/read/29228817/cangrelor-in-percutaneous-coronary-intervention-current-status-and-perspectives
#5
Dimitrios Alexopoulos, Christos Pappas, Danai Sfantou, John Lekakis
Cangrelor is an intravenously administered P2Y12 receptor antagonist with very fast, potent, and quickly reversible action. In the CHAMPION PHOENIX trial, cangrelor provided an improved anti-ischemic protection compared with clopidogrel, without increasing the risk of severe bleeding. Cangrelor is currently approved by drug regulating authorities for patients undergoing percutaneous coronary intervention (PCI) without prior treatment with a P2Y12 receptor antagonist and not receiving a glycoprotein IIb/IIIa inhibitor, while its use is endorsed with a class IIb recommendation by the European Society of Cardiology guidelines...
January 2018: Journal of Cardiovascular Pharmacology and Therapeutics
https://www.readbyqxmd.com/read/29228640/comparison-of-primary-endpoints-between-publications-registries-and-protocols-of-phase-iii-cancer-clinical-trials
#6
Fei Liang, Xinmei Guo, Sheng Zhang, Hongxi Xue, Qiang Chen, Xichun Hu
Background: Decisions by leading journals to require trial registration and to make protocols of phase III randomized clinical trials (RCTs) publicly accessible were landmark events in clinical trial reporting. Materials and Methods: We identified phase III cancer RCTs published between 2013 and 2015 in New England Journal of Medicine (NEJM), The Lancet, The lancet Oncology, JAMA and Journal of Clinical Oncology (JCO). Results: We identified 345 reports of phase III RCTs of which 217 (62...
November 14, 2017: Oncotarget
https://www.readbyqxmd.com/read/29227818/neutrophil-lymphocyte-ratio-kinetics-in-patients-with-advanced-solid-tumours-on-phase-i-trials-of-pd-1-pd-l1-inhibitors
#7
Malaka Ameratunga, Maxime Chénard-Poirier, Irene Moreno Candilejo, Manuel Pedregal, Andrew Lui, David Dolling, Caterina Aversa, Alvaro Ingles Garces, Joo Ern Ang, Udai Banerji, Stan Kaye, Hui Gan, Bernard Doger, Victor Moreno, Johann de Bono, Juanita Lopez
BACKGROUND: Although the neutrophil-lymphocyte ratio (NLR) is prognostic in many oncological settings, its significance in the immunotherapy era is unknown. Mechanistically, PD-1/PD-L1 inhibitors may alter NLR. We sought to characterise NLR kinetics in patients with advanced solid tumours treated with PD-1/PD-L1 inhibitors. METHODS: Electronic records of patients treated with PD-1/PD-L1 inhibitors on phase I trials across three sites were reviewed. A high NLR (hNLR) was predefined as >5...
December 8, 2017: European Journal of Cancer
https://www.readbyqxmd.com/read/29225740/glycemic-control-in-acute-illness
#8
REVIEW
Moritoki Egi, Nana Furushima, Shohei Makino, Satoshi Mizobuchi
Hyperglycemia is commonly observed in critical illness. A landmark large randomized controlled trial (RCT) reported that the incidence of hyperglycemia (blood glucose concentration > 108 mg/dl) was as high as 97.2% in critically ill patients. During the past two decades, a number of RCTs and several meta-analyses and network meta-analyses have been conducted to determine the optimal target for acute glycemic control. The results of those studies suggest that serum glucose concentration would be better to be maintained between 144 and 180 mg/dl...
December 2017: Korean Journal of Anesthesiology
https://www.readbyqxmd.com/read/29217001/long-term-safety-and-efficacy-of-platinum%C3%A2-chromium-everolimus-eluting-stents-in-coronary-artery-disease-5-year-results-from-the-platinum-trial
#9
Christopher R Kelly, Paul S Teirstein, Ian T Meredith, Bruno Farah, Christophe L Dubois, Robert L Feldman, Joseph Dens, Nobuhisa Hagiwara, Abram Rabinowitz, Didier Carrié, Vincent Pompili, Alain Bouchard, Shigeru Saito, Dominic J Allocco, Keith D Dawkins, Gregg W Stone
OBJECTIVES: The authors sought to evaluate the final 5-year safety and effectiveness of the platinum-chromium everolimus-eluting stent (PtCr-EES) in the randomized trial, as well as in 2 single-arm substudies that evaluated PtCr-EES in small vessels (diameter <2.5 mm; n = 94) and long lesions (24 to 34 mm; n = 102). BACKGROUND: In the multicenter, randomized PLATINUM (PLATINUM Clinical Trial to Assess the PROMUS Element Stent System for Treatment of De Novo Coronary Artery Lesions), the PtCr-EES was noninferior to the cobalt-chromium everolimus-eluting stent (CoCr-EES) at 1 year in 1,530 patients undergoing percutaneous coronary intervention...
December 11, 2017: JACC. Cardiovascular Interventions
https://www.readbyqxmd.com/read/29215052/peroxiredoxin-activity-is-a-major-landmark-of-male-fertility
#10
Do-Yeal Ryu, Ki-Uk Kim, Woo-Sung Kwon, Md Saidur Rahman, Amena Khatun, Myung-Geol Pang
Peroxiredoxins (PRDXs) are important antioxidant enzymes reported to have a role in sperm function and male fertility. However, how PRDXs affects male fertility remain fundamental unanswered questions. We therefore sought to investigate the role of these enzymes in sperm function and fertilisation. In this in vitro trial, mouse spermatozoa were incubated with different concentrations of conoidin A (1, 10, or 100 µM), a specific inhibitor of PRDXs. Our results demonstrated that inhibition of PRDXs by conoidin A significantly decreased the oxidized form of peroxiredoxins (PRDXs-SO3) in spermatozoa...
December 7, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29212686/practice-patterns-in-the-care-of-acute-achilles-tendon-ruptures-is-there-an-association-with-level-i-evidence
#11
U Sheth, D Wasserstein, R Jenkinson, R Moineddin, H Kreder, S Jaglal
AIMS: To determine whether the findings from a landmark Canadian trial assessing the optimal management of acute rupture of the Achilles tendon influenced the practice patterns of orthopaedic surgeons in Ontario, Canada. MATERIALS AND METHODS: Health administrative databases were used to identify Ontario residents ≥ 18 years of age with an Achilles tendon rupture from April 2002 to March 2014. The rate of surgical repair (per 100 cases) was calculated for each calendar quarter...
December 2017: Bone & Joint Journal
https://www.readbyqxmd.com/read/29211782/generative-mathematical-modelling-to-demonstrate-virtual-simulations-of-neovascular-age-related-macular-degeneration
#12
David Hoyle, Tariq Mehmood Aslam
PURPOSE: To develop a generative mathematical model of wet age-related macular degeneration (AMD) and model the impact of injections of anti-vascular endothelial growth factor to virtual patients with the condition. METHODS: We isolated key pathophysiological components of macular degeneration in terms of macular edema development and response to anti-vascular endothelial growth factor (VEGF) agents. We developed mathematical models for each of these components using constants determined from published biological experimentation...
2017: PloS One
https://www.readbyqxmd.com/read/29210900/development-of-image-enhanced-endoscopy-of-the-gastrointestinal-tract-a-review-of-history-and-current-evidences
#13
Shiaw-Hooi Ho, Noriya Uedo, Akira Aso, Shuji Shimizu, Yutaka Saito, Kenshi Yao, Khean-Lee Goh
Endoscopy imaging of the gastrointestinal (GI) tract has evolved tremendously over the last few decades. Key milestones in the development of endoscopy imaging include the use of various dyes for chromoendoscopy, the application of optical magnification in endoscopy, the introduction of high-definition image capturing and display technology and the application of altered illuminating light to achieve vascular and surface enhancement. Aims of this review paper are to summarize the development and evolution of modern endoscopy imaging and in particular, imaged-enhanced endoscopy (IEE), to promote appropriate usage, and to guide future development of good endoscopy practice...
November 28, 2017: Journal of Clinical Gastroenterology
https://www.readbyqxmd.com/read/29205686/ultrasound-guided-lower-forearm-median-nerve-block-in-open-surgery-for-trigger-thumb-in-1-to-3-year-old-children-a-randomized-trial
#14
Wei Liu, Jianxia Liu, Xingqin Tan, Shouyong Wang
BACKGROUND AND AIM: Trigger thumb is a common hand disability in children and is primarily treated with open surgery. A conscious median nerve block can usually meet the requirements for trigger thumb-releasing surgery in adults; however, its effectiveness in children requires further clarification. The present study aims to demonstrate whether ultrasound-guided lower forearm median nerve blockade is a viable option for children undergoing open surgery for trigger thumb. METHODS: A prospective randomized study was designed to compare median nerve blocks guided by ultrasonography with those guided by anatomic landmarks...
December 5, 2017: Paediatric Anaesthesia
https://www.readbyqxmd.com/read/29205077/forty-years-of-landmark-trials-undertaken-by-the-danish-breast-cancer-cooperative-group-dbcg-nationwide-or-in-international-collaboration
#15
Bent Ejlertsen, Birgitte Vrou Offersen, Jens Overgaard, Peer Christiansen, Maj-Britt Jensen, Niels Kroman, Ann Søgaard Knoop, Henning Mouridsen
BACKGROUND: Over the past 40 years the Danish Breast Cancer Cooperative Group (DBCG) has made significant contributions to improve outcome and to make treatment of patients with early breast cancer more tolerable through nationwide and international trials evaluating loco-regional and systemic treatments. These trials have been instrumental to establish standards for the treatment of early breast cancer. METHODS: The DBCG 82 trials had a global impact by documenting that the significant gain in loco-regional recurrence from postmastectomy radiation added to systemic therapy was associated with a reduction in distant recurrence and mortality in high-risk pre- and postmenopausal patients...
December 5, 2017: Acta Oncologica
https://www.readbyqxmd.com/read/29204789/a-preliminary-study-on-precision-image-guidance-for-electrode-placement-in-an-eeg-study
#16
Sangseo Jeon, Jongho Chien, Chanho Song, Jaesung Hong
Conventional methods for positioning electroencephalography electrodes according to the international 10/20 system are based on the manual identification of the principal 10/20 landmarks via visual inspection and palpation, inducing intersession variations in their determined locations due to structural ambiguity or poor visibility. To address the variation issue, we propose an image guidance system for precision electrode placement. Following the electrode placement according to the 10/20 system, affixed electrodes are laser-scanned together with the facial surface...
December 4, 2017: Brain Topography
https://www.readbyqxmd.com/read/29204069/the-role-of-focal-laser-in-the-anti-vascular-endothelial-growth-factor-era
#17
REVIEW
Jason N Crosson, Lauren Mason, John O Mason
Introduction: To review important studies examining focal laser for diabetic macular edema (DME), to examine real-world data regarding actual treatments patients are receiving, to present long-term visual outcomes in real-world practice, and to suggest an evidence-based approach for the use of focal laser. Methods: This study is a review of landmark studies evaluating focal laser and pharmacologic therapy for DME. In addition, the authors include a retrospective review of 102 consecutive eyes of 53 patients in our practice setting in rural Alabama...
2017: Ophthalmology and Eye Diseases
https://www.readbyqxmd.com/read/29200069/visualization-improves-supraclavicular-access-to-the-subclavian-vein-in-a-mixed-reality-simulator
#18
Joshua Warren Sappenfield, William Brit Smith, Lou Ann Cooper, David Lizdas, Drew B Gonsalves, Nikolaus Gravenstein, Samsun Lampotang, Albert R Robinson
BACKGROUND: We investigated whether visual augmentation (3D, real-time, color visualization) of a procedural simulator improved performance during training in the supraclavicular approach to the subclavian vein, not as widely known or used as its infraclavicular counterpart. METHODS: To train anesthesiology residents to access a central vein, a mixed reality simulator with emulated ultrasound imaging was created using an anatomically authentic, 3D-printed, physical mannequin based on a computed tomographic scan of an actual human...
November 30, 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/29194068/polycythemia-vera-and-essential-thrombocythemia-algorithmic-approach
#19
Alessandro M Vannucchi, Paola Guglielmelli, Ayalew Tefferi
PURPOSE OF REVIEW: To describe an algorithm-based approach, whenever available, to the diagnosis, the risk stratification criteria informing therapy and the current management of polycythemia vera and essential thrombocythemia. RECENT FINDINGS: Description of recurrent genetic abnormalities in driver genes, including Janus Kinase 2 (JAK2), myeloproliferative leukemia and calreticulin, a better appreciation of the key diagnostic role of bone marrow features, results of large epidemiologic studies and a few but landmark controlled clinical trials produced in the last decade, all resulted in a reappraisal of the approach to polycythemia vera and essential thrombocythemia...
November 30, 2017: Current Opinion in Hematology
https://www.readbyqxmd.com/read/29192260/antisense-oligonucleotides-the-next-frontier-for-treatment-of-neurological-disorders
#20
REVIEW
Carlo Rinaldi, Matthew J A Wood
Antisense oligonucleotides (ASOs) were first discovered to influence RNA processing and modulate protein expression over two decades ago; however, progress translating these agents into the clinic has been hampered by inadequate target engagement, insufficient biological activity, and off-target toxic effects. Over the years, novel chemical modifications of ASOs have been employed to address these issues. These modifications, in combination with elucidation of the mechanism of action of ASOs and improved clinical trial design, have provided momentum for the translation of ASO-based strategies into therapies...
December 1, 2017: Nature Reviews. Neurology
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